Knobcon 2017 - Synthrotek Quadrangle and TST Modules

Portland, Oregon-based Synthrotek have built a deserved reputation as both an architect of their own products and a seller of curated modular gear, including the work of George Mattson, who can rightfully be said to have invented the "keytar" (the Performance Music Systems Syntar, which arguably has never been improved upon).

At Knobcon 2017, they introduced two new modules: the Quadrangle, a four-way envelope and function generator; and the TST, a cool little utility module which lets you power and test other modules before installing them permanently in your Eurorack system. Proprietor Steve Harmon gives us a look at both in the video below.